1598397 has 8 divisors (see below), whose sum is σ = 2137056. Its totient is φ = 1062672.

The previous prime is 1598381. The next prime is 1598447. The reversal of 1598397 is 7938951.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1598397 - 2⁴ = 1598381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1598327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1638 + ... + 2424.

It is an arithmetic number, because the mean of its divisors is an integer number (267132).

2^1598397 is an apocalyptic number.

It is an amenable number.

1598397 is a deficient number, since it is larger than the sum of its proper divisors (538659).

1598397 is an equidigital number, since it uses as much as digits as its factorization.

1598397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467.

The product of its digits is 68040, while the sum is 42.

The square root of 1598397 is about 1264.2772638943. The cubic root of 1598397 is about 116.9216364732.

The spelling of 1598397 in words is "one million, five hundred ninety-eight thousand, three hundred ninety-seven".